From 5ec6f1085ab2ef3416f229810a10550111a43814 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Wed, 21 Oct 2015 22:04:14 -0700
Subject: [PATCH] Ensure `_.toInteger` can return `-0`.

---
 lodash.js    | 9 ++++++---
 test/test.js | 6 ++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/lodash.js b/lodash.js
index 013a1f793..799df4b94 100644
--- a/lodash.js
+++ b/lodash.js
@@ -9736,9 +9736,12 @@
      * // => -1e308
      */
     function toInteger(value) {
-      return (value == INFINITY || value == -INFINITY)
-        ? (value < 0 ? -1 : 1) * MAX_INTEGER
-        : (value - (value % 1)) || 0;
+      if (value === INFINITY || value === -INFINITY) {
+        return (value < 0 ? -1 : 1) * MAX_INTEGER;
+      }
+      value = +value;
+      var remainder = value % 1;
+      return value === value ? (remainder ? value - remainder : value) : 0;
     }
 
     /**
diff --git a/test/test.js b/test/test.js
index 75c07a4e3..0c0ded3d9 100644
--- a/test/test.js
+++ b/test/test.js
@@ -19063,6 +19063,12 @@
       assert.strictEqual(_.toInteger(Infinity), MAX_INTEGER);
       assert.strictEqual(_.toInteger(-Infinity), -MAX_INTEGER);
     });
+
+    QUnit.test('should not coerce `-0` to `0`', function(assert) {
+      assert.expect(1);
+
+      assert.strictEqual(1 / _.toInteger(-0), -Infinity);
+    });
   }());
 
   /*--------------------------------------------------------------------------*/